Loom



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J. NORTHROP LOOM 2 Shee Filed Nov', 16, 1923 JONAS Non'rnnor, or:formara MASSACHUSETTS, iissiciivoiz. 'ro'nornminn MANU- FACTURINGCOMPANY, OF MILFORD, CHUSETTS. I

Application med November 16, 1923. Serial No. 675,124.

To allwhomz'tmay concern: v

.Be it known that JONAS Non'rmxor, a citizen of the United States,residing at Hopedale, in the county of Worcester and State ofMassachusetts, have invented certain new and useful Improvements inLooms and I do hereby declare the following` to be a full, clear, andexact description of theinvention, such as will enable others skilled inthe art to which it appertains to make and use the same.

The present invention relates to an improvement in weft replenishinglooms.v

The object of the invention is to improve the construction of weftreplenishing looms in order to adapt to pivoted picker A'stick loomsweft replenishing mechanism of thel well-known .Northrop type. To thisvend the invention consists in the loom hereinafter described andparticularly defined in the claims.

iioor plates occupy the. f Fig. 2 and support the pic In the accomanying drawings illustrate ing the preferre form of the invention, Fig.1 isa plan view of the weft replenishin end of the lay, a portion of theframe sing shown in section; Fig. 2 is a section taken on the line 2-2,Fig. 1; Fig. 3 is a front elevation of the weft replenishing end ofthelay; Fig. 4 is a plan of the same with the shuttle box removed; and Fig.5 is a cross-section taken on the line 5--5, Fig. 1.

The illustrated embodiment tion is described as slotted at 11 to affordegress for the exhausted bobbin or the bobbin from which the ofl theinventhread has broken upon replenishment ofv the shuttle. The lay isprovided witha front box late 12 and a binder 13 pivoted at 14 to theEack box plate. The ioor of the liy 1s provided with pivoted iioorplates 15 an 16, the frontiloor plate 15 beingpivoted at.17 on thelay,and the back iioor p ate 16 being pivoted at 18, and both normally heldin the position shown in Fig. 2 by the springs l19 and 20, see Fight.

In the ordinary operation-of the loom the position shown in er 21. Thepicker stick 22 is received in a central opening in the picker, andbeing pivoted at its lower end instead of being mounted Aon a motion, asin many looms, its u per end rises throu li the aperture in e pickerwhen the s uttle is picked. This necessitetes providing the box lips tohold the paralle follows: The lay 10 is` l hausted MASSACHUSETTS; A.CORPORATION OF MASSA- LOOSE.

picker on the floor of the lay. The li 23 on the front box plate extendsrearwardlljy over the shuttle, and the lip 24 on the rear box plateextends forwardly over the shuttle and thereby holds the picker fromrising when 60 thficker stick throws the shuttle.

en the bobbin is being ejected from the shuttle the picker occupies theposition shown in Fig. 1, and it is then necessary to open the swingingfloor as tojpermit the ejection of the bobbin through the slot in thelay. To this end means are provided for actuating the oor plates. A{ioorpplate actuating slide is mounted in the lay transversely of nearvthe bottom, asshown' in Fig. 2, and

when it is moved in thedi'rection of the arrow 31'its upwardlyprojecting end 32 enfv gagesthe projecting arm v33 secured by screwsvonthe end of the back floor plate 16 75 and moves'it-out to the positionshown in `4. Atthe same time a lever 34 pivoted l at35 one.. castingsecured to the lay is operated the slide v,30,.tlie lateral proJection36 of whichvengages the lower end of the lever 34 to sfngthe jleverclockwise,l as seen in Fig. 2so :as thereby to cause the upper end ofthe lever 34'to press against the projecting arm 37 secured tothe front'iioor plate 15 to move it forwardly,pso asthereby to swing 85,

the *front'iioorfv late forwardly into the position shown in ig. l4.

The means for. actuatin the slide 30 is found in the block 38 whicslides vertically on the "lheadl 39 of. a portionof 40 of the loom, theblock 38 being pivotally mounted on the bolt `41. secured in the rear,end of the lever 42 which is .secured to the change shaft 43. The lever42is a two-part affair, the rear end being pivoted on the arm 44 bymeans of the pin 45, and a bolt 46 being provided which the lever 42 anda slot 47 in the arm 44, so that the position of the arm, 42 withrespect to the chan e shaft 43 maybe adjusted to present 100 the b ook38to the end of the slide 30 when the change shaftis o erated, and thenas the lay beats forward the endof the slide 30 strikes the block,-.andswung o en `to permit obbin. 'y

' The resent invention permits the use of a pivote picker stick withbobbin changing looms. This is a feature of advantage in the applicationofV weft replnmlg .the iioor plates are plates 15 and 16 so 65 the same70 the frame 9o passes through a hole in the egress of the ex- 106mechanism 110 'changing type to looms, as it enlarges the field of saleof such attachments to include a class of looms not heretofore adaptedto receive such attachments.

Having described the invention, what is claimed is 1. A weftreplenishing loom of the bobbin changin type`having, in combination,weft replenis ingmechanism, a picker, a picker stick which extendsslidingly through the' picker, a lay provided with a slot .for thepicker stick, and means controlled by the weft replenishing mechanismfor widening,r the slot when such mechanism is operated to permit egressof the exhausted bobbin.

2. A weft replenishing loom of the bobbin changing type having, incombination, weft replenishing mechanism, a lay provided with a pickerstick slot2 a picker stick, a picker, means foi supportlng the picker tocause the latter to move directly in line 'with the shuttle during thepicking operation, and means controlled by the weft replenishingmechanism for widening the slot in the lay when such mechanism isoperated to permit egress of the exhausted bobbin. I l

3. A weft replenishing loom of the bobbin having, in combination, a lay,weft replenishing mechanism, a pivoted picker stick, the lay beingprovided with a picker stick slot, and means controlled by the weftreplenishing mechanism for widenin the slot when such mechanism isoperate to permit egress of the exhausted bobbin. i

4. A wett replenishing loom of the bobbin' changing type having` incombination. a layq weft replenishil mechanism, aI pivoted picker stlck,a pic er, the lay being provided with a slot under the position occupiedby the shuttle during replenishment to permit egress of the exhaustedbobbin, a movable Hoor plate-.for the lay which normally supports thepicker, means connected with the weft replenishing mechanism foractuating the movable door plate when the replenishing mechanism .isoperated to remove the door plate trom the path of motion of exhaustedloobhinu 5. A weft re lenishing loom oit the bobbin changing type aving,in combination, a lay provided with a longitudinal slot in its end anderthe shuttle to permit 4the egress of the exhausted bobbin, pivotedpicker stick, a

picker, floor plates mounted on the lay to support the picker when theshuttle is picked, means for moving the floor plates to widen the slotin the lay floor to permit egress of the exhausted bobbin, weftreplenishing controlling means, and connections between the Hoor plateactuating means and weft replenishing controlling means operating to'move the floor plates when' weft replenishment is indicated.

6. A weft replenishingloom of the bobbin changing type having, incombination, a lay, a shuttle box, a shuttle, a bobbin slot in thelay',a pivoted picker stick, a picker, amovablev4 floor plate mounted onsupporting the picker when the shuttle is picked, means for moving thefloor plate to open the bobbin slot, weft replenishing controllingmeans, and connections between the ymeans for moving the floor`plate andwett replenishing controlling means operating upon indication of weftexhaustion to move the .floor plate to permit the egress of theexhausted bobbin.

7. A; weft replenishing loom of the bobbin changing type having, incombination, a lay having a bobbin slot, a pivoted picker stick, apicker, Hoor platesy pivoted on the lay overhanging the sides of thebobbin slot to support the picker when the shuttle is picked, a changeshaft, 'an arm mounted on Athe change shaft carrying a bunter, a slidemounted on ther lay adapted to strike the bunter when the change shaftis operated .npon exhaustion of the bobbin, and connections between theslide and to swing them apart so as to enlarge the opening at the top ofthe bobbin slot to permit the egress of the exhausted bobbin.

- 8. A weft replenishing loom of the bobbin changingl type havingbincombination, weft replenishing mechanism, a lay provided with a bobbinslot, a pivoted picker stick, a picker, floor plates mounted on the laynormally overhanging the bobbin slot sufliciently to support the pickerand ad'oi'd a passage between them for the picker stick, meanscontrolled by the weft replenishing mechanism for moving the door platesapart so'as to permit the egress of the exhausted bobbin upon theplenishment the door plates the lay for' indication of weft rel

